*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.main{
    display: flex;
    justify-content: center;
    align-items: center;
    width: 350px;
    margin: auto;
}
.week,
.day{
    display: flex;
    flex-wrap: wrap;
}
h2{
    text-align: center;
    padding: 10px 0;
}
.week span,
.day span{
    width: 50px;
    line-height: 50px;
    text-align: center;
    border: 1px solid #999;
}
.h{
    color: #999;
}
.today{
    background: #065E94;
    color: #fff;
}